Laptop booted then died

I was given a laptop to try and repair last night. It came with a multi adapter and I found that the laptop ran on 18.5v so I switched it on, it got to the windows logo screen and thought about it for a while then died and wont boot again. Originally the person who asked me to fix it said the screen wouldn't come on, but the vga was working when it booted earlier, it's just that now it's died completely.

Yeah it could be I suppose, but I don't have a spare battery to test it. The adapter definitely works as it's a multi and I just tested it on something else. The battery should charge though, unless it's completely knackered.

Yeah it could be I suppose, but I don't have a spare battery to test it. The adapter definitely works as it's a multi and I just tested it on something else. The battery should charge though, unless it's completely knackered.